#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) REP(i,0,n)
#define REP(i,s,e) for(int i=(s); i<(int)(e); i++)
#define repr(i, n) REPR(i, n, 0)
#define REPR(i, s, e) for(int i=(int)(s-1); i>=(int)(e); i--)
#define all(r) r.begin(),r.end()
#define rall(r) r.rbegin(),r.rend()

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;

const ll INF = 1e18;
const ll MOD = 1e9 + 7;

template<typename T> T chmax(T& a, const T& b){return a = (a > b ? a : b);}
template<typename T> T chmin(T& a, const T& b){return a = (a < b ? a : b);}


#define DEBUG_MODE
#ifdef DEBUG_MODE
#define dump(x) cout << #x << " : " << x << " "
#define dumpL(x) cout << #x << " : " << x << '\n'
#define LINE cout << "line : " << __LINE__ << " "
#define LINEL cout << "line : " << __LINE__ << '\n'
#define dumpV(v) cout << #v << " : ["; for(auto& t : v) cout << t << ", "; cout<<"]" << " "
#define dumpVL(v) cout << #v << " : ["; for(auto& t : v) cout << t << ", "; cout<<"]" << endl
#define STOP assert(false)
#else
#define dump(x) 
#define dumpL(x) 
#define LINE 
#define LINEL 
#define dumpV(v) 
#define dumpVL(v) 
#define STOP assert(false)
#endif
#define mp make_pair
 
namespace std {
template<class S, class T>
ostream &operator <<(ostream& out, const pair<S, T>& a) {
    out << '(' << a.fi << ", " << a.se << ')';
    return out;
}
}

void update(string& a, const string& b) {
    if(a.empty()) a = b;
    else if(a.size() > b.size() || a > b) a = b;
}

string calc(int n) {
    string str;
    while((int)str.size() < n+20) {
        char c = '0' + (str.size()%2);
        str += c;
    }
    
    vector<string> dp(n+10);
    auto check = [&](int i, int j) {
        int k = i+j*j;
        return dp[k].empty() || (dp[k].size() >= dp[i].size() + j);
    };
    rep(i, dp.size()) {
        for(int j = 1; j*j+i < (int)dp.size(); ++j) {
            if(check(i, j)) {
                if(i == 0) update(dp[j*j], str.substr(0, j));
                else update(dp[i+j*j], dp[i] + str.substr((dp[i].back() == '1'), j));
            }
        }
    }
    return dp[n];
}


int main(){
    int n;
    cin >> n;
    cout << calc(n) << '\n';
    return 0;
}